Beam end waterproof expansion joint

Abstract

The utility model belongs to bridge waterproof technical field especially relates to a beam end waterproof drainage expansion device, it includes: the connecting plate and the two groups of special section bars symmetrically set in the both sides of connecting plate, the both ends of connecting plate are connected with two groups the inside slide of special section bar respectively, the inside of special section bar is equipped with movable cavity, the movable cavity is equipped with the connecting plate in the slide, and movable cavity is communicated with one end of drainage hole, the other end of drainage hole is through the side wall of special section bar close to the connecting plate, and is located in the lower part of the side wall of special section bar, a plurality of anchoring steel bars are equipped on the side wall of special section bar away from the connecting plate, the end of special section bar is equipped with water collecting tank and drain pipe. The water in the device drops to the water collecting tank under the action of gravity, and then is discharged through the drain pipe, which can timely discharge the water, reduce the long-time soaking of the special section bar and the connecting plate by the water, and improve the service life of the bridge beam end waterproof drainage expansion device.

Description

Technical Field

[0001] This utility model belongs to the field of bridge waterproofing technology, and in particular relates to a beam end waterproofing and drainage expansion device. Background Technology

[0002] The bridge beam end waterproofing device is an important connecting component between the beam ends of a bridge. It not only prevents rainwater from eroding the beam, but also adapts to the expansion and contraction of the beam, playing an important role in protecting the beam. The performance of the bridge beam end waterproofing device directly affects the durability of the bridge.

[0003] The existing beam end waterproofing device can only retain water through evaporation. In areas with frequent rainfall, water will remain in the waterproofing device year-round, which seriously affects the waterproofing performance and service life of the device. Utility Model Content

[0004] The purpose of this utility model is to provide a beam end drainage expansion joint to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A beam end waterproofing expansion joint includes: a connecting plate and two sets of irregular profiles symmetrically arranged on both sides of the connecting plate, wherein the two ends of the connecting plate are respectively slidably connected to the interior of the two sets of irregular profiles;

[0007] The irregular profile has a movable cavity inside, and the connecting plate is slidably disposed in the movable cavity; one end of the movable cavity is connected to the drainage hole, and the other end of the drainage hole passes through the side wall of the irregular profile near the connecting plate and is located at the lower part of the side wall of the irregular profile; a number of anchoring steel bars are provided on the side wall of the irregular profile away from the connecting plate.

[0008] As a further improvement of this utility model, the irregular profile includes an upper profile and a lower profile, and the lower part of the upper profile and the upper part of the lower profile are both provided with cavities, and the two cavities form the movable cavity;

[0009] The upper profile and the lower profile are connected by bolts, and a spring washer is provided at the connection between the bolt and the upper profile.

[0010] As a further improvement of this utility model, the lower part of the upper profile and the upper part of the lower profile are provided with "L"-shaped slots, and the anchoring steel bars are provided inside the slots.

[0011] As a further improvement of this utility model, the connecting plate includes a connecting part and sliding parts disposed at both ends of the connecting part; the sliding parts are located inside the movable cavity, and the connecting part passes through the side wall of the irregular profile.

[0012] As a further improvement of this utility model, the lower part of the side wall of the irregular profile is provided with a drainage groove corresponding to the other end of the drainage hole. The drainage groove is in the shape of "∟", and the end of its horizontal part is connected to the irregular profile.

[0013] As a further improvement of this utility model, a wave support plate is provided inside the movable cavity, and the wave support plate is located between the side wall of the movable cavity and the end of the connecting plate.

[0014] As a further improvement of this utility model, the connecting plate is made of nylon.

[0015] As a further improvement of this utility model, the end of the irregular profile is also provided with a water collection trough and a drain pipe. The upper part of the water collection trough is located below the irregular profile and corresponds to the irregular profile. The lower part of the water collection trough is connected to the drain pipe. The drain pipe is inclined downward and towards the irregular profile.

[0016] The beneficial effects of adopting the above technical solution are as follows:

[0017] This invention features a connecting plate that slides inside an irregularly shaped sheet material. The connecting plate can slide within the irregularly shaped profile to generate relative displacement, thereby accommodating changes in the beam joint between two bridge beams and meeting the requirements of the bridge beam end waterproofing and expansion joint device.

[0018] The irregularly shaped panels are connected to their side walls through drainage holes. If water seeps into the interior of the panels, it can be drained through the drainage holes, preventing water from seeping under the bridge and reaching the piers, thus affecting the bridge's durability. Water collection troughs and drainage pipes corresponding to the irregularly shaped panels are installed. Under the action of gravity, the water falls into the collection troughs and is then drained through the drainage pipes, which can drain water in a timely manner, reduce the long-term immersion of the irregularly shaped profiles and connecting plates in water, and improve the service life of the bridge beam end waterproof expansion joint. Attached Figure Description

[0019] Figure 1 This is a top view of the present invention (excluding the water collection tank and drain pipe);

[0020] Figure 2 for Figure 1 Cross-sectional view at point AA;

[0021] Figure 3 This is a schematic diagram illustrating the use of this utility model;

[0022] The markings in the diagram are as follows: 1 connecting plate, 1-1 connecting part, 1-2 sliding part, 2 irregular profile, 2-1 movable cavity, 2-2 drainage hole, 2-3 anchoring steel bar, 2-4 upper profile, 2-5 lower profile, 2-6 bolt, 2-7 spring washer, 2-8 drainage groove, 2-9 corrugated support plate, 3 water collection groove, 4 drainage pipe, 5 beam. Detailed Implementation

[0023] To better understand the purpose, structure, and function of this utility model, a clear and complete description of this utility model will be provided below in conjunction with the accompanying drawings.

[0024] like Figures 1-2 The beam end waterproofing expansion joint shown includes: a connecting plate 1 and two sets of irregular profiles 2 symmetrically arranged on both sides of the connecting plate 1, wherein the two ends of the connecting plate 1 are respectively slidably connected to the interior of the two sets of irregular profiles 2.

[0025] Specifically, the connecting plate 1 is made of nylon. Firstly, nylon has high mechanical strength, good toughness, and excellent mechanical properties. Secondly, it has good self-lubrication and friction resistance, making it suitable as a transmission component with a long service life. Thirdly, it has excellent heat resistance; for example, highly crystalline nylons like nylon 46 have very high heat distortion temperatures and can be used for extended periods at 150℃, while PA66, after glass fiber reinforcement, has a heat distortion temperature exceeding 250℃. Fourthly, it has excellent weather resistance. Fifthly, nylon has high water absorption, with a saturated water absorption rate exceeding 3%. The connecting plate 1 includes a connecting part 1-1 and sliding parts 1-2 disposed at both ends of the connecting part 1-1. The sliding parts 1-2 are located inside the profile 2, while the connecting part 1-1 passes through the sidewall of the profile 2. The sliding parts 1-2 can slide within the profile 2 to generate relative displacement, thereby accommodating the changes in the beam joint between the two bridge beams 5 and meeting the requirements of the bridge beam end drainage expansion joint device. Furthermore, a wave support plate 2-9 is provided between the interior of the irregular profile 2 and the sliding part 1-2. The support plate is elastic and can ensure that the connecting plate 1 slides smoothly and avoid jamming.

[0026] The interior of each irregular profile 2 is provided with a movable cavity 2-1, and the connecting plate 1 is slidably disposed in the movable cavity 2-1. That is, the movable cavity 2-1 is provided with a sliding part 1-2 and a wave support plate 2-9. The wave support plate 2-9 is located between the side wall of the movable cavity 2-1 and the end of the connecting plate 1.

[0027] The movable cavity 2-1 is connected to one end of the drainage hole 2-2, and the other end of the drainage hole 2-2 passes through the side wall of the profile 2 near the connecting plate 1 and is located at the lower part of the side wall of the profile 2. Once water seeps into the movable cavity 2-1, it can be discharged through the drainage hole 2-2 to prevent water from seeping into the bridge and reaching the piers, thus affecting the durability of the bridge. In this embodiment, the lower part of the side wall of the profile 2 is provided with a drainage groove 2-8 corresponding to the other end of the drainage hole 2-2. The drainage groove 2-8 is "∟" shaped, and its horizontal end is connected to the profile 2.

[0028] The irregular profile 2 has several anchoring steel bars 2-3 on its side wall away from the connecting plate 1; the end of the irregular profile 2 is provided with a water collection trough 3 and a drainage pipe 4. The upper part of the water collection trough 3 is located below the irregular profile 2 and corresponds to the irregular profile 2. The lower part of the water collection trough 3 is connected to the drainage pipe 4. The drainage pipe 4 is inclined downward and towards the irregular profile 2. In use, the anchoring steel bars 2-3 are connected to the upper part of the beam 5. The irregular profile 2 is located at both ends of the upper part of the beam 5. The water collection trough 3 is located at both ends of the beam 5 and corresponds to the lower part of the irregular profile 2. The drainage pipe 4 is located at the lower part of the beam 5 and extends towards the beam joint. The water accumulated on the irregular profile 2 falls into the water collection trough 3 under the action of gravity and is then discharged through the drainage pipe 4. This can drain the water in time, reduce the long-term immersion of the irregular profile and the connecting plate 1 in water, and improve the service life of the bridge beam end waterproof expansion joint device.

[0029] In this embodiment, the irregular profile 2 includes an upper profile 2-4 and a lower profile 2-5. The upper profile 2-4 and the lower profile 2-5 are connected by bolts 2-6, and a spring washer 2-7 is provided at the connection between the bolts 2-6 and the upper profile 2-4. The bolts 2-6 press the upper profile 2-4 and the lower profile 2-5 together to form a sealing surface to achieve a waterproof effect. The lower part of the upper profile 2-4 and the upper part of the lower profile 2-5 are both provided with cavities, and the two cavities form the movable cavity 2-1. Furthermore, the lower part of the upper profile 2-4 and the upper part of the lower profile 2-5 are provided with "L"-shaped slots, and the anchoring steel bars 2-3 are provided inside the slots. The anchoring steel bars 2-3 are easy and quick to install. Specifically, the anchoring steel bars 2-3 include "L"-shaped connecting bars and fixing bars. The connecting bars are connected to the slots, and the ends of the connecting bars are connected to the fixing bars. The axial direction of the fixing bars is perpendicular to the plane of the connecting bars, and they are used to connect to the upper part of the beam 5.

[0030] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A beam end drainage expansion joint, characterized in that: It includes: A connecting plate (1) and two sets of irregular profiles (2) symmetrically arranged on both sides of the connecting plate (1), wherein the two ends of the connecting plate (1) are slidably connected to the interior of the two sets of irregular profiles (2); Each of the irregular profiles (2) has a movable cavity (2-1) inside, and the connecting plate (1) is slidably disposed in the movable cavity (2-1); one end of the movable cavity (2-1) is connected to the drainage hole (2-2), and the other end of the drainage hole (2-2) passes through the side wall of the irregular profile (2) near the connecting plate (1) and is located at the lower part of the side wall of the irregular profile (2); a number of anchoring steel bars (2-3) are provided on the side wall of the irregular profile (2) away from the connecting plate (1); The end of the irregular profile (2) is provided with a water collection trough (3) and a drain pipe (4). The upper part of the water collection trough (3) is located below the irregular profile (2) and corresponds to the irregular profile (2). The lower part of the water collection trough (3) is connected to the drain pipe (4). The drain pipe (4) is inclined downward and towards the irregular profile (2).

2. The beam end drainage expansion joint according to claim 1, characterized in that: The irregular profile (2) includes an upper profile (2-4) and a lower profile (2-5). The lower part of the upper profile (2-4) and the upper part of the lower profile (2-5) are provided with cavities, and the two cavities form the movable cavity (2-1). The upper profile (2-4) and the lower profile (2-5) are connected by bolts (2-6), and a spring washer (2-7) is provided at the connection between the bolt (2-6) and the upper profile (2-4).

3. The beam end drainage expansion joint according to claim 2, characterized in that: The lower part of the upper profile (2-4) and the upper part of the lower profile (2-5) are provided with "L"-shaped slots, and the anchoring steel bars (2-3) are provided inside the slots.

4. The beam end drainage expansion joint according to claim 1, characterized in that: The connecting plate (1) includes a connecting part (1-1) and sliding parts (1-2) disposed at both ends of the connecting part (1-1); the sliding parts (1-2) are located inside the movable cavity (2-1), and the connecting part (1-1) passes through the side wall of the profile (2).

5. A beam end drainage expansion joint according to claim 1, characterized in that: The lower side wall of the profile (2) is provided with a drainage groove (2-8) corresponding to the other end of the drainage hole (2-2). The drainage groove (2-8) is "∟" shaped, and the end of its horizontal part is connected to the profile (2).

6. The beam end drainage expansion joint according to claim 1, characterized in that: The movable cavity (2-1) is provided with a wave support plate (2-9), which is located between the side wall of the movable cavity (2-1) and the end of the connecting plate (1).

7. A beam end drainage expansion joint according to claim 1, characterized in that: The connecting plate (1) is made of nylon.

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